Quick answers
- Where does Dien X. Mach see patients?
- Medicare's clinician data lists 1 practice location in Patton, CA. Call before your visit to confirm the address.
- What is Dien X. Mach's specialty?
- Medicare lists General Practice as the primary specialty.
- Does Dien X. Mach accept Medicare assignment?
- Yes. Medicare's clinician data says Dien X. Mach accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Dien X. Mach?
- (916) 651-8811, as listed in official Medicare / NPI Registry data.
- What is Dien X. Mach's NPI number?
- 1831141571. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Dien X. Mach is enrolled with Medicare (CMS data updated 2026-10-02).
- 3102 E Highland AvePatton, CA 92369 (916) 651‑8811
Group practices
Medicare enrollment lists Dien X. Mach as a member of this group (CMS data updated 2026-10-02).
- Department of State Hospitals270 clinicians in the group
Specialties
- General Practiceprimary
Other general practitioners in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Perelman School Of Med At The University Of Pennsylvania |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1831141571 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians